629868 has 12 divisors (see below), whose sum is σ = 1469720. Its totient is φ = 209952.

The previous prime is 629861. The next prime is 629873. The reversal of 629868 is 868926.

629868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (629861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26233 + ... + 26256.

629868 is a Friedman number, since it can be written as 6^9/(8+8)+6*2, using all its digits and the basic arithmetic operations.

2⁶²⁹⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

629868 is an abundant number, since it is smaller than the sum of its proper divisors (839852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

629868 is a wasteful number, since it uses less digits than its factorization.

629868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52496 (or 52494 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 629868 is about 793.6422367793. The cubic root of 629868 is about 85.7202011790.

The spelling of 629868 in words is "six hundred twenty-nine thousand, eight hundred sixty-eight".